Better is a poor and a wise child than an old and foolish king, who will no more be admonished.

Be not over much wicked, neither be thou foolish: why shouldest thou die before thy time?

I applied mine heart to know, and to search, and to seek out wisdom, and the reason of things, and to know the wickedness of folly, even of foolishness and madness:

The beginning of the words of his mouth is foolishness: and the end of his talk is mischievous madness.

The labour of the foolish wearieth every one of them, because he knoweth not how to go to the city.